Intelligent unmanned gas safety monitoring device and method

Abstract

The invention discloses an intelligent unmanned gas safety monitoring device and method. The monitoring device comprises a central control module, a sensor and an electromagnetic valve used as a gas valve, wherein the electromagnetic valve is arranged on a gas pipeline of a gas source and a gas appliance; the sensor is connected with the central control module; the electromagnetic valve is controlled by the central control module; the sensor is a Doppler radar sensor and is used for sensing whether the worker moves on a site; the central control module is integrated with a timing control device; the trigger end of the timing control device is connected with the signal output end of the Doppler radar sensor; the output end of the timing control device is connected with the control end of the electromagnetic valve. According to the intelligent unmanned gas safety monitoring device and method, gas shutoff, fire putting out and alarming can be performed in an initiative delaying manner and the safety performance is high.

Description

technical field [0001] The invention relates to an intelligent unmanned gas safety monitor and a monitoring method. Background technique [0002] At present, gas safety protection devices in the market mostly use the concentration of gas leakage as the monitoring object, such as "gas leakage alarm device (Patent No. CN1201210590264)", a gas stove monitoring and alarm system and its implementation method (Patent No. Cooker wireless monitoring system (patent number CN201110374359), this gas alarm device is a passive alarm, only when there is a gas leak, the alarm can be activated, and the alarm will be prompted when the gas density reaches (1500-2500PPM). At this time, the CO density is already available. The possibility of secondary combustion or explosion is a passive prevention with low safety. [0003] The patented automatic gas monitor (the application number is CN200720010818), its core idea is to discharge the leaked gas through the range hood to achieve the safety pur...

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Problems solved by technology

[0003] The patented automatic gas monitor (the application number is CN200720010818), its core idea is to discharge the leaked gas through the range hood to achieve safety purposes, which is basically similar to the aforementioned scheme, but also has the problem of low safety

[0004] Looking at the above-mentioned products, no matter how the prevention and measures are, they are all "lag and passive" prevention solutions, which cannot provide early warning and timely containment, and cannot fundamentally eliminate the hidden danger of fire caused by gas

[0005] On the other hand, there are many empty-nest elderly in the city, most of whom have the characteristics of old age and memory loss. Whenever they enter the kitchen and turn on the gas stove, they often turn around and immediately forget about the "stove fire"; there are also those who are at home with children Young parents, bachelors and many middle-aged people often forget to turn off the fire because they are busy with other things, resulting in many tragedies of property damage and casualties. The core reason is not gas leakage, but human negligence, and such The number of fires caused by accidents is far greater than the number of accidents caused by gas leakage

Therefore, many of the above-mentioned schemes based on the concentration of gas leakage to realize gas monitoring cannot prevent the occurrence of such accidents at all.

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